With Charli XCX sparking a summer phenomenon, we take a look at the nature of slang: who uses it, why we use it, and how we need to be very careful with it. You’re Saying It Wrong was recorded and produced at KMUW studios and is part of the NPR Podcast Network. Thanks to our language experts, Kathy Petras and Ross Petras. You can follow them at their website: kandrpetras.com.